Soft-dome midrange driver?

[Test Pilot]

After Dynaudio decided not to talk to DIY-ers anymore it`s not easy to find any good sounding 2" or 3" domes for a four-way system.
Does anyone know where to find some? Monacor are still selling one 2"`, that`s all I know

[pinkmouse]

ATC SM75.150S, the best mid driver I have ever heard, but it's about £300 per driver!

[Variac]

The ATC has mythic status!
Even Lynn Olsen of Ariel fame says they are the only good dome mids if I remember correctly. I guess you have to get them!

[tbla]

hi there...

i have the atc scm 100sl, a 3-way using the 3" mid-dome!

its good, its the best - every larger speaker should be based on that driver.
the idear is to cover the very critical 300 - 4000 hz without any crossover.
it has mega powerhandling.
its "linear"
it has good diffussion.....
it sounds total neutral.

if i should build a speaker and use the atc dome, i would definitely
use the "original atc crossover - which have impedance correction "up and down" and 12 db slopes "up and down"

best regards,
troels

[pekka]

Morel makes a 2 inch soft dome midrange, the MDM55. Has anybody tried that?

I believe a German loudspeaker DIY magazine tested the Morel driver a short while ago. Curves looked pretty decent, if I remember correctly.

[navin]

what about LPG. they used to make a 2 inch dome recomended to be Xoed at 800Hz or so.

[Test Pilot]

Thanks for the tips folks! The ATC is crying too loud for me, I`ll have to strangle it to fit the other divers! Mybe in a later project?
And; I`m just using the mid-dome as a "low-tweeter", that means a good 2"-dome will do the job close to perfect, better than the ATC.(-after replacing the back-chamber and a little tuning..)

[Kanga]

Nice to see the ATC dome getting a mention here, as it is one that I have contemplated for a speaker I'm planning for after I have finished my bass cabinets.

There doesn't seem to be much info on this driver, even on the ATC website. All I can find out is that recommended XO frequency is 380 Hz, and it looks like it has its own rear chamber, so you don't need an enclosure for it. Please correct me if I'm wrong.

Troels - what do you mean by "Impedance correction "up and down"" ? Do you have any XO schematics for the driver?

Any other information appreciated.

Mick

[Jere]

I know the place where is dynaudio D-54Af's still on sale. Pretty good drivers!

Check www.digitex.it price was something about 250e each. they might have something else dynaudios too. They had 4 pcs left about 1-1,5 months ago.

[Variac]

The ATC is very hard to find out much about. Anyone else have any leads?

What's the efficiency? It's true that the website doesn't seem to have info on it. What website are you guys looking at?
Anyone know any dealers?

Sounds like with the Stage Accompany tweet and some PHL or Audax woofs that this is the DIY Audio high output speaker.